CH Tech EM405D user manual Electrical, Mechanical, Environmental, Bus Compliance

1.3 Electrical

The EM405D only requires a +12V DC power input. The +12V input is internally converted to the +3.3V power required by the carrier and the +5V, +12V, and -12V power required by the M- modules. A maximum of 30 watts is required to support the carrier and two M-modules operating at the maximum allowed power consumption. The maximum allowed power consumption for each M-module is 1A of +5V and 200ma each of +12V and -12V. The EM405D uses power-off resetable fuses on the incoming +12V supply. If a fault occurs, power must be removed before the fuse will reset. The fuse is rated at 5 amps.

1.4 Mechanical

The EM405D is contained in a metal chassis with an outside dimension of 5.6 inches wide by 8.5 inches deep by 1.5 inches high. A variable speed fan provides forced air for cooling the M- modules. The unit weighs approximately 1.7 lbs with no M-modules installed.

1.5 Environmental

The environmental specifications of the module are:

Operating Temperature:	0°C to +60°C*
Storage Temperature:	-40°C to +75°C
Humidity:	<95% without condensation

*The forced air cooling is designed to allow a maximum 20°C temperature rise for installed M- modules. In other words, with two M-modules operating at full dissipation, the M-modules’ temperature can only be maintained within 20°C of the ambient air inlet temperature.

Installed M/MAs may differ in environmental specification. Refer to each individual M/MA’s documentation for information.

1.6 Bus Compliance

The module complies with the ANSI/VITA 12-1996 Specification for single or double-wide M- Modules and the MA-Module trigger signal extension.

Addressing:	A08 only (extended addressing not supported)
Data:	D16 only
Interrupts:	not supported
DMA:	not supported
Triggers:	Trig A and Trig B Input/Output
Manufacturer ID:	0FC116
Model Number:	0FDB16

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